A Casino, or gambling house, is a facility where people can play various games of chance for real money. They can also offer food, drinks and entertainment. There are a number of different kinds of casinos, ranging from large Las Vegas-style resorts to small card rooms. Many states allow some form of gambling, while others prohibit it or limit it to certain types of games. Casinos are often combined with hotels, restaurants and other facilities for a complete vacation experience.

Although the precise origins of casino gambling are unclear, it is believed that gaming in some form predates recorded history, with primitive protodice and carved knuckle bones found in ancient archaeological sites. The modern casino combines all forms of gambling under one roof, and adds a host of luxuries such as restaurants, free drinks, stage shows and dramatic scenery to appeal to visitors.

In the United States, the largest casino resorts are located in Nevada and Atlantic City, with smaller casinos in cities such as Reno, New Orleans, Chicago and Los Angeles. There are also riverboat casinos, Indian casinos, electronic bingo machines, pari-mutuel betting at racetracks and truck stops, and a state lottery.

Successful casinos make billions of dollars each year for the companies, investors, and Native American tribes that own them. They can also generate large profits for state and local governments through taxes, fees and payments. However, the high risk of addiction and other problems associated with gambling mean that casinos are not always good for communities.